Joseph j



(No Model.)

J. J. ADGATE.

NEEDLE JACK.

No. 546,986. Patented Oct. 1, 1895.

IN VEI VTOH WITNESSES.

A TTOHNE).

llwrrn a STATES Y A'IEN'I Fries.

JOSEPH J. ADGATE, or LIBERTY, ASSIGNOR TO JOHN BENTLEXQ'OF NEW YORK, N.Y.

NEEDLE JACK.

SPECIFICATION forming part of Letters Patent No. 546,986, dated October1, 18950 Application filed liovember 5,1894. Renewed July 8, 1395.Serla1ll'o.554,891. (No model.)

To all whom it may concern:

Be it known that I, J OSEPH J. ADGATE, of Liberty, Sullivan county, NewYork, have invented certain new and useful Improvements in Needle-Jacksfor Knitting-Machine Needles, of which the following is a specification.

My invention relates to that class of jacks which are made of a singlepiece of metal and in which the needles are inserted and fasten ed, andparticularly to so forming the knees of the jacks that it shall not benecessary to reinforce them by soldering or riveting another piece ofmetal to them, but the metal of the original thickness of the knee is sodisposed as to furnish the necessary support to the adjacent jacks; andmy invention consists particularly in the details hereinafter set forth.

In the drawings, Figure 1 is a side elevation of my improved jack with aneedle inserted therein. Fig. 2 is an edge view of a series of three ofthe jacks, the upper part of the needles being broken away. Fig. 3 is aside elevation of the jack for the bent needles used in weft-threadmachines, and Fig. 4 is a top view of a series of four jacks.

The second and fourth jacks in the series shown are of the form shown inFig. 8.

Similar letters of reference designate similar parts in all the figures.

A is the body of the jack, which is formed of a single piece of thinmetal and is provided with a slot J at its upper end to receive theneedle B.

O is the knee, which is intended to travel in the cam-groove in theusual manner.

As is well understood in the art, the jacks slide up and down invertical grooves in the needle-cylinder, while their knees travel in thecam-groove, and it is important that the knees should mutually supporteach other against lateral motion. To accomplish this and compensate forthe space taken up by the divisions between the needle-grooves I bend orcrimp the knee of the jacks alternately from side to side, so that thesurface of the knee shall have projecting portions on either sideextending half way to the next jack. Upon the next jack the bends orcrimps are reversed, so that those on adjacent sides of the jacks shallmeet, thus giving the jacks mutual lateral support. These bends orcrimps can be readily produced by dies, which can be used to strike upthemetal of the knees into the desired form.

Referring to the drawings, D indicates the crimp nearest to the bodyofthe jack, and E that extending to the edge of the knee. In the seriesin Figs. 2 and 4 the crimp D in the first jack on the left is thrown .tothe right, and the corresponding crimp in the second jack of the seriesis thrown to the left, and so on alternately, and the crimps E alternatein the same manner, as shown.

A reference to Fig. 4 will show that at the bend of the crimp E themetal of the series of jackets presents a solid line of support upon theline a: as, so that the series of jacks will sustain great pressure orresistance without bending or losing their proper crimps. By this methodI secure a very strong and durable jack made of a single piece of metal,which can be readily formed by dies and which entirely dispenses withthe use of solder or rivets, and economizes the metal used to form thejacks.

In Fig. 3 the upper portion of the jack is shown reduced in width from Fto O to allow for the tilting or forward play of the top of the jacktoward the cam-cylinder during the descent of the bent needle. The bendin the needle descending past the upper edge of the needle-cylindertilts the needle and jack forward, and this reduced width of the jackallows for this movement.

Having thus described my invention, What I claim, and desire to secureby Letters Patent of the United States, is

1. A needle jack composed of a single piece of metal, and having a kneeintegral therewith and formed from the same thickness of metal as thebody of the jack, and provided with vertical crimps alternating onopposite sides of the knee,substantially as and for the purposes setforth.

2. A series of needle jacks provided with knees formed from the samethickness of metal as the bodies of the jacks, said knees being providedwith vertical bonds or crimps alternating to opposite sides of theknees, the upper portion of the body of such jack being formly reducedin width from F to 0 sub stantially as and for the purposes set forth.

JOSEPH J. ADGATE.

direction of such bends or crimps being reuni versed in every alternateknee, substantially as and for the purposes set forth.

3. A needle jack composed of a single piece Witnesses:

WM. D. NEILLEY, HERBERT J. HINDES.

of metal, having a knee integral with the body thereof, provided withcrimps D and E the

